A big harvest for us-- We don't need to worry about high price and questionable cartridges. Hihgly recommended. Thanks for SYS staff,for your enthusia

—— Mr. Scott Roth

South Yusen is really a responsible and reliable Chinese manufacturer and supplier. They succedd my business.

—— Akim

Our business is going from small to big one due to the efforts with South Yusen. We will keep our efforts to do better and better relationship. Thanks for your stable quality toner support and after sale service.

Warranty: if any fault products, we will make the replacement for free.

Before leaving the factory , the products go through as following professional test:

1.Mechanical test to ensure the toners smooth operation and no noise, and to comply with ISO standards.
2.Environment protection test to ensure toner's environment safe.
3.Duration test to ensure toners can last more one year.
4.Diffcult conditions tests such as abnormal temperature, air pressure, strong sun light and rough trasportations tests to ensure the printing quality remanins high.
5. Water resistant test to ensure printing won't fade and be diluted when wet.
6.Printing quality test to ensure the printing is real black, sharp, no slur and won't fade.
7.Capacity test to ensure the number of printed pages is the same as the ones of original manufacturers...